Grinding-wheel frame



NIT-ED STATES PATENT Erica DAVID B. HYDE, OF SPRINGFIELD, MASSACHUSETTS.

GRlNDlNG-WHEEL FRAME.

SPECIFICATION forming part of Letters Patent No. 285,626, datedSeptember 25, 1883.

\ Application led March 29, 1883. (No model.)

. VTo a/ZZ whom, it may concern,.-

Lwhich the following is a specification.

This invention relates to improvements in the construction of hoodedgrindingwheel frames, especially adapted to be used with wetgrindingemery-wheels, the object being to embody in a metallic frame of thisdescription y means for inclosing the lower half of thewheel in a caseand providing in the latter a pocket at the lowest part thereof,descending much below the interior ,circumferential line of the case,into which the worn-off particles of emery from the wheel will settle,together with such metallic matter as is ground off by the wheel; also,to provide for the upper half of said wheel a fixed hood covering aportion of its periphery and of its sides below the latter, and having aportion of said hood adapted to be swung toward the edge of the wheel asthe latteris worn smaller; also, to provide a table on said frame tohold an adjustable work-rest cast integral with said frame.

In the drawings forming part of this specication, Figure I is a sideelevation of a grinding-wheel frame embodying my improvements. Fig. IIis a plan view of the frame, the table, and the work-guide with'the hoodremoved and the wheel and its shaft taken out. Fig. III is a plan viewof the hood removed from the frame, Fig. II. V

The said frame A is provided with suitable bearings for the shaft of thewheel h, as shown, to provide for mounting said wheel in the frame, withits lower half in the latter and withy a ilange around itsrear side, towhich is bolted the fixed hood d. Said hood covers something more thanone-half of the edge of the wheel 7L above frame A, and is provided withsides partially covering each side of said wheel, as in Fig. I. To theend of said hood is pivoted, by the bolts e e, the cap b, also coveringa part of the edge and of the sides of wheel h,

but leaving aportion of the periphery of said wheel exposed just abovethe edge of the workrest n on table m. By said bolts the cap b may,after being swung to any desired position, be so fixed as to thereremain until further change is required by the wearing away of thewheel. Said cap serves to protect the workman from having any water orother matter thrown upon him from the wheel.

The table m is provided on frame A, before the edge of the wheel, tosupport the guide n, which is provided with the slotted arms a, throughwhich bolts o pass into said table, whereby said rest may be adj ustedto and from the edge of the wheel. l

The frame A is provided with a pocket, c, on its lower side, quite belowits inner circumference, into which the parts which wear off 65,

from the wheel, and metallic and other matter resulting from thegrinding action of the wheel thereon, may settle, so as to be so farbelow the edge 'of said wheel that they cannot be taken up thereby andcarried around on its periphery, `thereby filling up the pores of itscutting-surface and impeding its proper action.

A water-tank, o, is cast integral with the hood d, and provided with asuitable faucet for delivering water therefrom through a suitableaperture in the hood onto the wheel thereunder.

A discharge-pipe, having suitable means for closing it and opening it,is connected with the said pocket c, whereby the accumulations abovenamed may be discharged therefrom.

What I claim as my invention is- The within-described improvedgrindingwheel case, adapted to have a grinding-wheel mounted therein,and having the pocket c on its lower edge depressed below the innercircumferential line thereof, the table m, projecting from one edge, andhaving thereon the work-rest n, provided with the slotted arms a a,whereby it is adjustably secured to said table, and the hood d,partially covering the

